Question

3(x^2-1) + 4(x^2 - 3) = 13 solve for x

Answer 1

Answer:

x=2, x=-2

Step-by-step explanation:

3x²-3+4x²-12=13

7x²=13+12+3

7x²=28

x²=4

x=-2

x=2

Answer 2

X =-2 should bring the correct answer